It turns out that just about any time the GUI tries to get LVM information it
needs the --ignorelockingfailure flag. So if you have the GUI running and you
can see PVs or LVs, then you install lvm2-cluster
(lvm2-cluster-2.01.14-1.0.RHEL4 in this case) and do View->Reload, everything
will go back to Uninitialized Entities.